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Thermal Detector Technology Used on TIRS

Thermal Detector Technology Used on TIRS

Source: NASA GSFC @ YouTube


 All objects emit infrared radiation and the characteristics of the infrared radiation are primarily dependent on the temperature of the object. One of the unique features of the new Quantum Well Infrared Photodetector (QWIP) instrument technology is the ability to, what engineers call “band gap.” This means it can spectrally respond to specific wavelengths. This video shows the evolution of taking this instrument from inception, to testing on the ground and from a plane, and ultimately to a NASA science mission. The applications are range from finding caves on Mars to looking for thermal pollution in rivers or residual hot spots in forest fires, or monitoring food spoilage.
This technology is being used in the Thermal Infrared Sensor (TIRS) that will fly on the Landsat Data Continuity Mission (LDCM, to be renamed Landsat 8 upon orbit).
This video is public domain and can be downloaded at:
The QWIP Detector; an Infrared Instrument

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